Joy? Any middle name suggestions?

I love virtue names, and both the word and the name Joy have a lot of significance to me, and so would Joy be a stunningly meaningful name for a little girl. It's sweet, simple, and familiar although I've never met anyone called Joy. It is seen as very old-fashioned here, but I love it enough that I can put that aside.
But it's getting quite hard to find the right middle name, mainly because I feel that to balance the rhythm with a 2 syllable surname, a 3/4 syllable name is needed and none of the combinations I have come up with feel right.

JoyElizabeth - a little too vanilla?JoyGenevieve - too repetitive!JoyCaroline - I really, really want to love this one, I really do. Caroline is a middle name that runs in my family and I would love to carry that on, but I just can't get used to JoyCaroline because I feel like CarolineJoy would sound so much better....JoySusannah - probably my favourite, but I still don't love it.